# 数学运算符
num = 1+1
print("1+1=",num)
num = 3*5
print("3*5=",num)
num = 9//2
print("9//2=",num)
num = 2**3
print("2**3=",num)
num = 7%3
print("7%3=",num)

# 赋值运算符

# 复合赋值运算符
# num是变量不是常量
num = 3
num *= 3
print("num *= 3",num)
num **= 2
print("num **= 2",num)
num %= 2
print("num %= 2",num)